Fight for Life: Maggie (Vet Volunteers #1)

Maggie's grandmother runs an animal clinic, Dr. Mac's place, so Maggie knows her way around animals who are in danger.

Long Synopsis:

Maggie's grandmother runs an animal clinic, Dr. Mac's place, so Maggie knows her way around animals who are in danger. When she learns that the abused and sick puppies flooding the clinic are from an illegal puppy mill, she knows that she has to find out who's running it, where it is and save the rest of the dogs.